Analysis of daylighting control systems in 20 office and public spaces in Minnesota and Wisconsin shows that while the automatic daylight harvesting schemes are helping to reduce lighting energy in the buildings, most are not achieving optimal performance, according to a new study by the Energy Center of Wisconsin (ECW).
According to ECW, the median daylighting control system studied was saving 23% of lighting energy, including impacts on heating and cooling. This translated to 915 kWh saved for every kW of lighting controlled. But the average effectiveness (the energy saved versus energy saved with ideal control) of the controls was only 51%. This meant that almost half of the potential savings from these controls was not captured due to imperfect controls operation. Even worse, four of the 20 spaces studied had zero savings.
The low level of effectiveness, says ECW, is evidence of a lack of controls execution. The findings show that successful implementation of automatic daylighting control requires a significant commissioning effort to reach full energy-savings potential.
Read the full daylighting commissioning report from the Energy Center of Wisconsin.
As part of the report, ECW developed a tip sheet on commissioning and calibration and function testing of lighting controls. Recommendations include assigning a single person of the construction team to be responsible for verifying completion of all steps in the daylighting commissioning process, and proper training of the building owner/operator on the controls equipment and systems. Download the tip sheet (PDF)
(http://www.ecw.org/project.php?workid=1&resultid=494)
Related Stories
Higher Education | Aug 7, 2023
Building a better academic workplace
Gensler's David Craig and Melany Park show how agile, efficient workplaces bring university faculty and staff closer together while supporting individual needs.
University Buildings | Aug 7, 2023
Eight-story Vancouver Community College building dedicated to clean energy, electric vehicle education
The Centre for Clean Energy and Automotive Innovation, to be designed by Stantec, will house classrooms, labs, a library and learning center, an Indigenous gathering space, administrative offices, and multiple collaborative learning spaces.
Green | Aug 7, 2023
Rooftop photovoltaic panels credited with propelling solar energy output to record high
Solar provided a record-high 7.3% of U.S. electrical generation in May, “driven in large part by growth in ‘estimated’ small-scale (e.g., rooftop) solar PV whose output increased by 25.6% and accounted for nearly a third (31.9%) of total solar production,” according to a report by the U.S. Energy Information Administration.
Resiliency | Aug 7, 2023
Creative ways cities are seeking to beat urban heat gain
As temperatures in many areas hit record highs this summer, cities around the world are turning to creative solutions to cope with the heat. Here are several creative ways cities are seeking to beat urban heat gain.
Government Buildings | Aug 7, 2023
Nearly $1 billion earmarked for energy efficiency upgrades to federal buildings
The U.S. General Services Administration (GSA) recently announced plans to use $975 million in Inflation Reduction Act funding for energy efficiency and clean energy upgrades to federal buildings across the country. The investment will impact about 40 million sf, or about 20% of GSA’s federal buildings portfolio.
MFPRO+ New Projects | Aug 4, 2023
Nashville gets 'first-of-its-kind' residential tower
Global architecture firm Goettsch Partners announces the completion of Alcove, a new 356-unit residential tower in Nashville, Tenn., developed by Giarratana LLC.
Industrial Facilities | Aug 3, 2023
The state of battery manufacturing in the era of EV
One of the most significant changes seen in today’s battery plant is the full manufacturing process—from raw materials to the fully operational battery.
Government Buildings | Aug 2, 2023
A historic courthouse in Charlotte is updated and expanded by Robert A.M. Stern Architects
Robert A.M. Stern Architects’ design retains the original building’s look and presence.
Hotel Facilities | Aug 2, 2023
Top 5 markets for hotel construction
According to the United States Construction Pipeline Trend Report by Lodging Econometrics (LE) for Q2 2023, the five markets with the largest hotel construction pipelines are Dallas with a record-high 184 projects/21,501 rooms, Atlanta with 141 projects/17,993 rooms, Phoenix with 119 projects/16,107 rooms, Nashville with 116 projects/15,346 rooms, and Los Angeles with 112 projects/17,797 rooms.
Architects | Aug 1, 2023
Ware Malcomb announces hire of Jason Golub as Regional Director
In this role, Golub is responsible for the overall leadership and continued growth of the office.
